| SURFACE TREATMENT | ZINC OVERALL EXCEPT INSERT |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | M |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| MATERIAL | STEEL OVERALL EXCEPT INSERT |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT PREVAILING TORQUE |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 12.0 MILLIMETERS |
| NUT HEIGHT | 8.0 MILLIMETERS MINIMUM AND 12.0 MILLIMETERS MAXIMUM |
| NUT STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 18.0 MILLIMETERS MINIMUM AND 19.0 MILLIMETERS MAXIMUM |